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EP0242326A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Device for studying the diffusion of a substance and method for the operation of the device

Assignee: Pharmatronic AG
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Filing: 1987-04-06
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Granted: —
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Expires: 2007-04-06
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Abstract

Abstract Translated from German Eine Einrichtung zur Untersuchung der Diffusion einer Sub­stanz weist ein um eine vertikale Achse (11) drehbares, lösbar am Halteteil (17) eines Rotors (13) befestigtes, Donator-Kompar­timent (29) auf, das unten durch die Membran (25) gegen ein Akzeptor-Kompartiment (33) abgegrenzt ist. Die Membran (25) weist einen flexiblen Träger aus einem biokompatiblen, leblo­sen, lichtdurchlässigen Material, auf dem beispielsweise einen Zellrasen bildende Zellen kultiviert wurden. Durch Ermitteln des zeitlichen Verlaufs der Mengen einer durch die Membran (25) hindurch diffundierenden Substanz kann der Diffusions-Koeffi­zient und/oder die Permeabilität der Membran (25) sowie auch der auf dieser vorhandenen Zellkultur ermittelt werden. Durch ge­eignete Auswahl der Zellen können Bedingungen geschaffen wer­den, die denjenigen bei der Resorption der betreffenden Sub­stanz durch die Biophase eines Lebewesens sehr nahekommen. A device for examining the diffusion of a substance has a donor compartment (29) which can be rotated about a vertical axis (11) and is detachably fastened to the holding part (17) of a rotor (13) and which is pressed against one another below by the membrane (25) Acceptor compartment (33) is delimited. The membrane (25) has a flexible support made of a biocompatible, lifeless, translucent material, on which, for example, cells forming a cell lawn have been cultivated. The diffusion coefficient and / or the permeability of the membrane (25) and also of the cell culture present on it can be determined by determining the time course of the amounts of a substance diffusing through the membrane (25). By suitable selection of the cells, conditions can be created which closely approximate those in the absorption of the substance in question by the biophase of a living being.

Inventors

  • 👤 Stephan Buchmann
  • 👤 Hans Prof. Dr. Leuenberger
  • 👤 Claudia Dr. Reinke

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 13:00
CPC Classifications
C; C12; C12M; C12M25/00; C12M25/02; B; B01; B01D; B01D63/00; B01D63/08; B01D63/087; B01D69/00; B01D69/10; B01D69/107; B01D69/1071; B01D71/00; B01D71/06; B01D71/40; B01D71/42; B01D71/421

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